The motor theory is about the process by which language emerged and developed and how it functions now in human speech. The concern is with both synchronic and the diachronic aspects of language, language evolving over time and differentiating over space. In English alone we have half a million words and endless syntatic complexities, as Chomsky has demonstrated. Add the multitude of other languages that exist and have existed and it is apparent that language is a massive multiply-faceted fact-in time and space. Where did all the complexity come from? Whence the power of words seen in so many diverse forms of human interaction? How does this thread of sound tie our minds together?

This book explores the origin and evolution of speech. The human speech system is in a league of its own in the animal kingdom and its possession dwarfs most other evolutionary achievements. During every second of speech we unconsciously use about 225 distinct muscle actions. To investigate the evolutionary origins of this prodigious ability, Peter MacNeilage draws on work in linguistics, cognitive science, evolutionary biology, and animal behavior. He puts forward a neo-Darwinian account of speech as a process of descent in which ancestral vocal capabilities became modified in response to natural selection pressures for more efficient communication. His proposals include the crucial observation that present-day infants learning to produce speech reveal constraints that were acting on our ancestors as they invented new words long ago. This important and original investigation integrates the latest research on modern speech capabilities, their acquisition, and their neurobiology, including the issues surrounding the cerebral hemispheric specialization for speech. Written in a clear style with minimal recourse to jargon the book will interest a wide range of readers in cognitive, neuro-, and evolutionary science, as well as all those seeking to understand the nature and evolution of speech and human communication.

Language Origin: A Multidisciplinary Approach presents a synthesis of viewpoints and data on linguistic, psychological, anatomical and behavioral studies on living species of Primates and provides a comparative framework for the evaluation of paleoanthropological studies. This double endeavor makes it possible to direct new research on the nature and evolution of human language and cognition. The book is directed to students of linguistics, biology, anthropoloy, anatomy, physiology, neurology, psychology, archeology, paleontology, and other related fields. A better understanding of speech pathology may stem from a better understanding of the relationship of human communication to the evolution of our species. The book is conceived as a timely contribution to such knowledge since it allows, for the first time, a systematic assessment of the origins of human language from a comprehensive array of scientific viewpoints.

This collection brings together the best papers presented at recent meetings of the Language Origins Society. The volume reflects the diversity of approaches from many disciplines that are used to unravel the mystery of the origin of language: linguistics, anatomy, physiology, paleoanthropology, neuropsychology, physical anthropology, evolutionary biology and psychology.

The question of language origin has fascinated people for years. The contributions in the present book stem primarely from the papers presented at the Third International Meeting of the Language Origins Society (LOS) held at Vanderbilt University in Nashville, Tennessee, June 1988. The contributors approach the problem not only from the viewpoint of linguistics, but also from that of anatomy, physiology, social sciences, physical anthropology, paleoanthropology, paleontology, comparative zoology, general biology, ethology, evolutionary biology and psychology.

Berwick and Chomsky draw on recent developments in linguistic theory to offer an evolutionary account of language and humans' remarkable, species-specific ability to acquire it. “A loosely connected collection of four essays that will fascinate anyone interested in the extraordinary phenomenon of language.” —New York Review of Books We are born crying, but those cries signal the first stirring of language. Within a year or so, infants master the sound system of their language; a few years after that, they are engaging in conversations. This remarkable, species-specific ability to acquire any human language—“the language faculty”—raises important biological questions about language, including how it has evolved. This book by two distinguished scholars—a computer scientist and a linguist—addresses the enduring question of the evolution of language. Robert Berwick and Noam Chomsky explain that until recently the evolutionary question could not be properly posed, because we did not have a clear idea of how to define “language” and therefore what it was that had evolved. But since the Minimalist Program, developed by Chomsky and others, we know the key ingredients of language and can put together an account of the evolution of human language and what distinguishes us from all other animals. Berwick and Chomsky discuss the biolinguistic perspective on language, which views language as a particular object of the biological world; the computational efficiency of language as a system of thought and understanding; the tension between Darwin's idea of gradual change and our contemporary understanding about evolutionary change and language; and evidence from nonhuman animals, in particular vocal learning in songbirds.

The evolution of human language has been discussed for centuries from different perspectives. Linguistic theory has proposed grammar as a core part of human language that has to be considered in this context. Recent advances in neurosciences have allowed us to take a new neurobiological look on the similarities and dissimilarities of cognitive capacities and their neural basis across both closely and distantly related species. A couple of decades ago the comparisons were mainly drawn between human and non-human primates, investigating the cytoarchitecture of particular brain areas and their structural connectivity. Moreover, comparative studies were conducted with respect to their ability to process grammars of different complexity. So far the available data suggest that non-human primates are able to learn simple probabilistic grammars, but not hierarchically structured complex grammars. The human brain, which easily learns both grammars, differs from the non-human brain (among others) in how two language-relevant brain regions (Broca’s area and superior temporal cortex) are connected structurally. Whether the more dominant dorsal pathway in humans compared to non-human primates is causally related to this behavioral difference is an issue of current debate. Ontogenetic findings suggest at least a correlation between the maturation of the dorsal pathway and the behavior to process syntactically complex structures, although a causal prove is still not available. Thus the neural basis of complex grammar processing in humans remains to be defined. More recently it has been reported that songbirds are also able to distinguish between sound sequences reflecting complex grammar. Interestingly, songbirds learn to sing by imitating adult song in a process not unlike language development in children. Moreover, the neural circuits supporting this behavior in songbirds bear anatomical and functional similarities to those in humans. In adult humans the fiber tract connecting the auditory cortex and motor cortex dorsally is known to be involved in the repetition of spoken language. This pathway is present already at birth and is taken to play a major role during language acquisition. In songbirds, detailed information exist concerning the interaction of auditory, motor and cortical-basal ganglia processing during song learning, and present a rich substrate for comparative studies. The scope of the Research Topic is to bring together contributions of researchers from different fields, who investigate grammar processing in humans, non-human primates and songbirds with the aim to find answers to the question of what constitutes the neurobiological basis of grammar learning. Open questions are: Which brain networks are relevant for grammar learning? Is there more than one dorsal pathway (one from temporal cortex to motor cortex and one to Broca’s area) and if so what are their functions? Has the ability to process sequences of a given hierarchical complexity evolved in different phylogenetic lines (birds, primates, other vocal production learners such as bats)? Is the presence of a sensory-to-motor circuit in humans a precondition for development of a dorsal pathway between the temporal cortex and Broca’s area? What role do subcortical structures (Basal Ganglia) play in vocal and grammar learning?

This is a revised and extended version of the Great Mosaic Eye originally published in 2001. There have been major changes in neuroscience and in language research since then. Apparently disparate segments of research have started to come together and it is necessary to recast both the structure and the content of the book. The extended title of the book with the addition of the word Society reflects this. Another important change is that the book as originally published fell into two halves, part 1 being the text of the book and part 2 an inserted CD which included a great deal of additional material that made possible important graphical and video content not easily presented in text form. This new edition attempts to integrate all the material contained in the earlier edition but relying on links to the Internet for material in place of that contained in the inserted CD. This new book, as indeed was the case for the earlier version, was intended to bring together a mass of material which had been published separately over more than 40 years under the titles The Physical Foundation of Language (first published 1973 and recently reprinted), The Motor Theory of Language (1989), The Natural Origin of Language: The Structural Inter-relation of Language Vision and Action, The Child and the World: How the child acquires language - How language mirrors the world (2005). All these are now in print so that it is not necessary to repeat in this book much of the extensive discussion in the earlier books - all supplemented by other recent material readily accessible on the Internet at

Scholars have long been captivated by the parallels between birdsong and human speech and language. In this book, leading scholars draw on the latest research to explore what birdsong can tell us about the biology of human speech and language and the consequences for evolutionary biology. They examine the cognitive and neural similarities between birdsong learning and speech and language acquisition, considering vocal imitation, auditory learning, an early vocalization phase ("babbling"), the structural properties of birdsong and human language, and the striking similarities between the neural organization of learning and vocal production in birdsong and human speech. After outlining the basic issues involved in the study of both language and evolution, the contributors compare birdsong and language in terms of acquisition, recursion, and core structural properties, and then examine the neurobiology of song and speech, genomic factors, and the emergence and evolution of language.

What is it that makes us human? This is one of the most challenging and important questions we face. Our species' defining characteristic is language - we appear to be unique in the natural world in having such an incredibly open-ended system for putting thoughts into words. If we are to truly understand ourselves as a species we must understand the origins of this strange and unique ability. To do so, we need to answer some of the most intriguing questions in contemporary scientific research: Where did language come from? How did it evolve? Why are we unique in possessing it? This book, for the first time, brings together the leading thinkers who are trying to unlock the puzzle of language evolution. Here we see the latest ideas and theories from fields as diverse as anthropology, archaeology, artificial life, biology, cognitive science, linguistics, neuroscience, and psychology. In a series of seventeen well-written and accessible chapters we get an unrivalled view of the state of the art in this exciting area. Current controversies are revealed and new perspectives uncovered, in a clear and readable guide to the latest theories. This collection marks a major step forward in our quest to understand the origins and evolution of human language. In doing so it sheds new light on the process of evolution, the workings of the brain, the structure of language, and - most importantly - what it means to be human. Language Evolution is essential reading for researchers and students working in the areas covered, and has been used as a textbook for courses in the field. It will also attract the general reader who wants to know more about this fascinating subject.